In the past, amalgam fillings were the go-to solution for cavities. But when is it time to replace them with modern white fillings?
I've had my dentist recommend replacing my old fillings with white ones multiple times. They don't bother me at all, so I'm hesitant. Yet, I'm hearing from more people who've made the switch. Why is it worth considering white fillings? Are there any downsides? — P.S., DEN BOSCH
Dentist Mascha Koster answers:
Benefits of white fillings
White fillings offer three key advantages. First, they're tooth-colored, making them far less noticeable than gray amalgam fillings. Second, the material bonds directly to the tooth, preserving more healthy structure—no extra grinding required, unlike with amalgam. Third, this bonding creates a stronger seal, enhancing durability.
Disadvantages of white fillings
That said, not all white fillings match amalgam's strength, so they're less ideal for large molars. Placement is more technique-sensitive and time-intensive, involving multiple steps. As a result, white fillings cost more.
Replacing old amalgam fillings
In my practice, we replace old fillings primarily when they're worn—due to fractures, poor margins, or recurrent decay—even if asymptomatic. These issues often go unnoticed until addressed.
